Micrometer-adjuster for embossing-presses



J. DQLIPPMANN. MICROMETER ADJUSTERFOR EMBOSSING PRESSES.

APPLICATION FILED APR-18.1921.

Patented Sept. 13, 1921.A

3 SHEETS-SHEET l.

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1. D. LIPPMANN. MICROMETER ADJUSTER FOR EMBOSSING PRESSES.

l APPLICATION HLED APR.18, 1921.

' 1,390,799. Pawnfedsept. 13,1921.

3 SHEETS-SHEET 2.

LHIIHMHI I l J. D. LIPPMANN.

MICROMETER ADIU'STER FOR EMBOSSING PRESSES. APPLICATION mtu APR.18.192|.

Patented Sept. 1,3, 1921.,

3 SHEETS-SHEET 3.

MoewtO/L UNITED STATES PATENT OFFICE.

JULIUS DANIEL LIPPMANN, 0F NEW YORK, N. Y., ASSIGNOR T0 EMIL WEINHEIM, OF NEW YRK, N. Y.

HICROMETER-ADJUSTER FOR EMBOSSING-PRESSES.

Specification of Letters Patent.

Application led April 18, 1921.

To all whom it may concern:

Be it known that I, JULIUs DANIEL LIPP- MANN, a citizen of the United States, and a resident of New York, county and State of New York, have invented certain new and useful Improvements in Micrometer- Adjusters for Embossing-Presses, set forth in the following specification.

This invention relates to presses, more particularly to the accurate adjusting of the separation between the pressure plates of such presses. The adjustment of the separation of the pressure plates carried by the jaws of embossing presses is mot important. Upon the accuracy of this adjustment is dependent the character of the finished work and heretofore the skill of an operator has alone been relied upon to make the necessar` adjustment.

n presses of this character there are two power-operated, relatively movable pressure jaws (one of which is usually stationary) which carry each a pressure plate havlng parallel motion one relatively to the other and forming the flat faces or beds for the mounting of the embossing plate, which acts directly 1n contact with the Work to give to it the desired finish. The pressure plate opposite the one carrying the embossing plate is customarily covered with a more or less compressible resilient matrix of uniform thickness, which yields upon the approach of the pressure plates and actually exerts the working pressure upon the work strip.

In presses of this character, one of the pressure plates is adjustably movable so that its face is constrained to move in parallel planes relatively to the pressure jaw with which it is associated. Parallel motion means for adjusting the position of this adjustable pressure plate must be provided to accomplish the necessary adjustment of a press of this character.

More specifically, the object of the present invention is to provide for the adjustment of the adjustable pressure plate V,through the parallel motion means under the control of an accurately graduated mechanism so that relatively unskilled labor is `capable of effecting an accurate adjustment o the press, according to any predetermined direction sheet. `To this end I pro ose to provide an abutment contact fixed re atively to one` of the pressure plates and a coperat- Patented Sept. 13, 1921.

serial No. 462,220.

ing, graduated, adjustable contact mounted on the adjustable pressure plate, so that an adjustment of the adjustable contact to accord with any predetermined scale measurement may be made by a relatively unskilled laborer whereby the two contacts, when brought together by an adjustment of the para lel motion means, will fix the correct adjustment for the entire press.

A further object of the invention is to provide for the most convenient embodiment of these contacts; for the most eiiicient positioning of the same relatively to the mechanism of the press; to provide means for setting the tip of the abutment contact in the plane of the embossing plate; and to provide an electrical telltale for the contacting of the adjustable contact with the abutment contact.

The above will better be understood by reference to the illustrative embodiment of my invention, described in the following specification in connection with the accompanying drawings which form a part hereof and in which like characters designate corresponding parts in the several figures: In the drawings- Figure 1 is a side elevation of an embossing press fitted with my invention, with parts broken away;

Fig. 2 is a view drawn to an enlarged scale, corresponding to Fig. 1, showing the contact mechanism proper;

Figs. 3, 4 and 5 are details of the nificrometer contact;

Fig. 6 is a rear view, with parts broken away and with parts shown in section, of the adjustable contact mechanism associated with the pressure plates; and

Fig. 7 is a plan view, part shown in section, of m mechanism showing the operation of the nder for the plane of the embossing plate.

strained to move with the jaw B but is ad-y justablerelatively thereto, as is customary, through some suitable parallel motion means Such as the wedge-block 2, which is operated b the wormscrew 3, and threaded boss 4. he handwheel 5 actually serves to 'effect the adjustment, which is shownin the drawings as vertically upward or downward for the pressure plate 3, suitable guides being provided to constrain the plate 2') against lateral movement. The hand-wheel 5 operates through sprockets 6 and 7 and chain 8.

Any desired" thickness of resilientjsheet materiallsuch as card-board provides a compressible cushion or 'matrix 9 carried on the vface of the -adjustable plate I). Thus it is between the top 4face 10 of the matrix 9 and the bottom-or embossing face 11 of -the embossingf plate 1 that the work strip is gripped." There'eipro'cation ofthe jaw B is not adjustable but, on the contrary, of constant' amount,so that the degree of pressure betweenthe faces 10 andV 11 is determinedbythe adjustment of the wheel 5 and by the thickness of the matrix 9. ,Calibrated 'work sheets or tables are. made up toac'cordl with any given matrix 9 for the adjustment of the adjustable plate Z) andit istoeiiect this adjustment quickly and aecurat'ely that my present invention is particularly adapted. For thisv purpose I mount'anabutment contact C fixedVY relativelyl to the plate a andl preferably aiiii; it directly to the` edge. of this plate through the'medium of screws 13 and suitable electrical :insulation 14.l This mechanism comprisesa' bracket AV15 having a boss 16 providing a threaded vertical opening for the adustable threaded contact screw 17, which may be 'fixed in adjustment by the check-nut 18, the upper end being preferably provided with a square head .for thereception of a turning toolv and also providing a terminal 20 for thel electrical connector 21. This abutment contact mechanism and, as is obvious, specifically the tip 22 of the screw 17 coperates with the adjustable contact mechanism D The adjustable contact mechanism D is suitably mounted preferably upon the edge of the adjustable pressure plate Z) as by means of screws 23 andthe electrical insulation 24, so that -theentire mechanism is insulate'd from thev press, as is likewise the ease for the abutment Contact mechanism C. The mechanism D comprises the bracket 25 providing a boss 26 which mounts any relatively adjustable contact stem 27, the positionfof which is indicated by a suitable scale such as the scales 28 and 29 of a standard micrometer gaged through the usual mechanisin-ofwhiehl the stem 27 may be caused to move-up or downin response to a turning of the' knurled yhead 30,

The ,zero position for the tip 31 of the stein 2,7 V'array at will correspond to theupper plane of the adjustable plate 11 or of the upper face of a standard matrix or, in fact, any arbitrary position, as desired, the calibration of the work sheet according with the zero position.

In using my mechanism, it is necessary to position the tip 22 of the abutment screw 17 in the plane of the face of the embossing plate 1. This I accomplish readily by the auxiliary mechanism E which essentially comprises a test table c having parallel movement relatively to itself and capable of being swung into position so that its top face e may bridge over as an extension of the plane of the face 11 of the embossing plate 1 to a position beneath the tip 22 of the4 abutment screw 17. lith this table swung into position, as indicated in Fig. (l, the screw 17 is screwed down until it contacts with the face c when its position is iixed by the check-nut 18.

The table e is provided with a boss 40 sliding upon the stem 41 and {ixable by the thumb-screw 42. The stem 41 is itself vertically mounted in the boss 43 of a bracket 44, suitably fixedl to the plate a. The thumb-screw 45 provides for an adjustment of the stem 41 as well as its removal and fixing. The stop-pin 4G at the bottom of' the stem 41 is convenient to prevent the table c from dro'pping'oii. It is believed to be obvious how a manipulation of the thumbscrews 42 and 45 will permit the swinging table c to be swung into the work position of Figs. 6 and 7 until an adjustment of the screw 17 is effected, and then how it may be swung clear of this position up into an idle position such as that indicated in Fig. 1, where it may be temporarily fixed by the thumb-screws..

In operating my mechanism, the press jaws A and B are stopped in their position of nearest approach responsive to the powerdriving mechanism, not shown. The micrometer d is then adjusted so that its stem 27 is set to the adjustment indicated by the work sheet for the desired run for the press. This adjustment is indicated by the scales 28 and 29 and should correspond with a direct reading from the work sheet.

The hand-wheel 5 is then operated to cause an approach of the plate o to the plate a. As soon as the stem 27 contacts with the tip 22, the desired adjustment has been ei"- fected and no more movement of the handwheel 5 should be made. To facilitate the schooling of unskilled labor in the operation of this mechanism, it is desirable to provide a telltale signal such as a bell or lamp which may be controlled by a switch 61.

of the frame 64 mounting the lamp and switch. A second lead 65 is provided for the switch 61 to connect with the battery 63.

What I claim and desire to secure by United States Letters Patent is 1. Adjustable setting mechanism for presses comprising in combination relatively movable compression jaws; a pressure plate carried by each said jaw; parallel motion means for adjusting the position of one of said pressure plates relatively to a compression jaw; an abutment contact fixed relatively to one of'said pressure plates; and a graduated gage having an adjustable contact adapted to coperate with said abutment contact, said gage being fixed to said adjustable pressure plate.

2. Adjustable setting mechanism for presses comprising in combination relatively movable compression jaws; an adjustable pressure plate adjustably carried by one of said jaws; a second pressure plate carried by the other of said jaws; means for determinlng the adjustment of said pressure plates relatively to each other, comprising an abutment contact fixed relatively to one of said pressure plates; and a coperating adjustable Contact having a graduated gage associated with the other pressure plate.

3. Adjustable setting mechanism for presses comprising in combination relatively movable compression jaws; an adjustable pressure plate adjustably carried by one of said jaws; a second pressure plate carried by the other of said jaws; means for determining the adjustment of said pressure plates relatively to each other, comprising an abutment contact fixed relatively to one of said pressure plates; a coperating adjustable contact having a graduated gage associated with the other pressure plate; and an electrical indicator operable in response to the contacting of said adjustable contact with said abutment contact.

In witness whereof I have signed my name to this specification, this 16th day of April, 1921, at New York, county and State of New York.

J ULIUS DANIEL LIPPMANN. 

